NOTE - First up is my PRE-SEASON FINALE POST which wasn't finished before Sunday night. There's a POST SEASON FINALE follow up!
Firstly, the fact that the women on Dr Who are all companions and that Dr Who has never been a woman for all of his vaunted alien regenerative body shifting abilities automatically disqualifies ANY of them from getting 4 SWORDS.
If Dr Who becomes a woman though, she's a fair chance at 4 or even 5 SWORDS of AWESOME WOMAN WARRIORNESS!
Secondly, Billie Piper with a gun bigger than her entire torso. PUHLEASE! She is so 1 SWORD of awkward. She is BIG CAR LITTLE DICK!
Now, some other companions have been more Emma Peel and less Agent 99, but I'm still waiting for serious SWORDS! There are a bucket load of companions on wikipedia and I'm going to enjoy revisiting old episodes in my new quest to rate the companions.
River Song: 3 SWORDS - only we don't really know if you're a companion yet.
Sarah Jane Smith: 3 SWORDS - for sheer persistence and fun.
Sara Kingdom: 3 SWORDS - only you got killed off straightaway - such is the fate of many of the strong women companions it seems!
Donna Noble: 2 SWORDS - when you're good, you're great but you're such a temp warrior.
Martha Jones: 2 SWORDS - you were a bit whiny to start but the uniform suits you.
Astrid Peth: 1 SWORD - worth a mention even if only a canary sized mini companion.
Rose Tyler: 1 SWORD - as said above, you are a bit BCLD !
All I can say though, is thank heavens for the taboo against kissing in the tardis!